1. The problem statement, all variables and given/known data A projectile is fired horzontally from a height of 1.5 m with a velocity of 100 m/s [E]. Ignoring any effects of friction.... a) How much time will elapse between the projectile being fired and hitting the ground? b) What will be the horizontal distance from the point of firing to the point at which the prokectile lands? c) What will be the speed of the projectile when it lands? d) What will be the angle at which the projectile strikes the ground? 2. Relevant equations 3. The attempt at a solution a) I'm thinking about using the equation v2 = v1 +-g(delta)t b) (delta)d = vt is what I was thinking. c) I attempted this one so many times, it's worth the most marks of them all, so it makes me think I need to use multiple equations. d) not a clue This is a correspondance physics course and the review I recieved had this projectile motion question on it, which is normally a good sign that there will be a similar question on the exam. The thing is, this grade 11 physics course did not cover horizontal projectile motion at all, and google is leading me astray with forumlas I've never even seen. I've been giving a list of formulas at the beginning of the practice exam, and I just can't determine at all which is the proper one to use. I really wanna ace my physics exam, but this is the only question I can't even begin to comprehend. The kinematics/motion on a plane unit was very scarce about these problems. Any help would be appreciated. Thanks.